Marietta & Cobb County • Dyno-Tuned Performance

Performance Services in Marietta, GA

ECU Dyno Tuning, Handling Upgrades, Race Prep & Custom Fabrication

From Haltech standalone ECU installs to corner-balanced coilovers and roll cage fabrication, 875 Performance builds track-ready and street-dominating vehicles for enthusiasts across Atlanta.

Book Performance Service Call: (470) 888-0875
Haltech
Authorized Dealer
& Installer
500+
Dyno-Tuned
Vehicles
4.9★
Google Rating
187+ Reviews
20+
Years Performance
Experience
Track-Proven Solutions

Explore Our Marietta Performance Services

Click on any service below to view details, dyno charts, and vehicle-specific requirements.

ECU Tuning & Dyno Calibration

Haltech • Flash Tuning • Flex Fuel

Custom dyno tuning, ECU remapping, Haltech standalone installs, boost optimization, and E85 flex fuel calibration for maximum safe power.

  • Before/after dyno graphs documented
  • Knock & AFR monitoring for safety
  • Launch control & motorsport features
ECU Tuning Details →

Performance Handling Upgrades

Coilovers • Sway Bars • Corner Balance

Coilover installation, sway bar upgrades, chassis bracing, polyurethane bushings, corner balancing, and track alignment for maximum grip.

  • KW, BC Racing, Öhlins & Bilstein
  • Precision corner balancing scales
  • Custom camber & track alignment
Performance Handling Details →

Race Prep & Track Safety

Roll Cages • Harnesses • Tech Inspections

Full track car preparation including roll cage installation, 5/6-point harnesses, race seats, brake ducting, and pre-track tech inspections.

  • Custom bolt-in & weld-in roll cages
  • High-temp brake fluid & ducting
  • Corner balancing & race alignment
Race Prep Details →

Custom Fabrication

Brackets • Piping • Chassis Bracing

Bespoke metal brackets, mounts, intake piping, intercooler routing, chassis reinforcement, and custom cooling component mounts.

  • CNC machining & TIG precision
  • CAD design & 3D scanning available
  • Perfect test-fit before finishing
Custom Fabrication Details →
How It Works

Our 4-Step Performance Build Process

We build your vision from concept to track-ready completion.

01

Consultation & Goals

We discuss your performance targets, driving style, and budget to create a tailored build plan.

02

Parts Selection

We recommend trusted brands and components matched to your vehicle and performance objectives.

03

Expert Installation

Our technicians install and calibrate every component using factory torque specs and precision tools.

04

Dyno & Road Testing

We verify performance gains with dyno runs, road tests, and provide digital documentation.

Marietta’s Performance Specialists

Why Choose 875 Performance for Your Build?

We are an authorized Haltech dealer with real track experience. Unlike generic shops, we understand how suspension geometry, engine calibration, and safety equipment work together to create a balanced, reliable performance vehicle.

From your first HPDE to full competition builds, we provide honest recommendations, transparent pricing, and documented results. Every performance project is backed by our reputation and warranty.

Performance car build at 875 Performance Marietta GA
Quick Estimate

Request a Performance Quote

Car Info fluent
Marietta Performance Facility

875 Performance

  • 3268 Fairview Dr, Marietta, GA 30066
    (Near Canton Rd & Bells Ferry Rd Corridor)
  • (470) 888-0875
  • [email protected]
  • Mon – Fri: 9:00 AM – 5:00 PM
    Saturday: By Appointment
    Sunday: Closed
Performance FAQs

Frequently Asked Questions

What performance services do you offer in Marietta GA?

We offer custom ECU dyno tuning, Haltech standalone ECU installation, performance handling upgrades (coilovers, sway bars, corner balancing), race prep with roll cage installation, and custom metal fabrication for brackets, mounts, and piping.

Is ECU tuning safe for my engine?

Yes, when performed by experienced professionals using proper equipment. We monitor air-fuel ratios, knock sensors, and exhaust gas temperatures to ensure safe tuning within your engine’s limits.

Will performance modifications void my vehicle warranty?

Some performance modifications may affect your factory warranty on certain components. However, components we install carry their own manufacturer warranties. We can discuss specific implications for your vehicle.

Do you install roll cages and safety equipment for track days?

Yes, we install custom bolt-in and weld-in roll cages, 5/6-point harnesses, race seats, and perform pre-track tech inspections to ensure your vehicle meets safety requirements.

How long does a custom dyno tune take?

A typical custom dyno tune takes 2-4 hours depending on the vehicle and modifications. We provide before and after dyno graphs to document performance gains.

Local Performance Coverage

Proudly Serving Enthusiasts Across Cobb County & North Atlanta

Performance services for drivers throughout the local area.

Marietta (30066 / 30062 / 30060) East Cobb Kennesaw (30144 / 30152) Acworth (30101 / 30102) Smyrna (30080) Roswell (30075) Woodstock (30188 / 30189)
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